Nvidia Chief Executive Jensen Huang said the recent $30bn investment in OpenAI could be the last before a possible IPO by the artificial intelligence start-up by the end of the year. He said it was unlikely that the plan floated in September for a total $100bn investment in OpenAI would materialize.

Speaking at Morgan Stanley's Technology, Media & Telecom Conference, Huang said the prospect of an IPO reduced the need for additional funding from Nvidia. He also said the group's $10bn investment in Anthropic, another major AI player, would likely be its last in that company.

Nvidia's $30bn stake is part of a $110bn fundraising round announced by OpenAI, which also includes a $50bn commitment from Amazon and a $30bn investment from SoftBank. Nvidia had already said in regulatory filings that no definitive agreement on a broader investment partnership with OpenAI was guaranteed.